A 20-story high vertical farm in Southwest China is in operation in Southwest China. The Plant Factory with Artificial Light (PFAL) is manned by robots, and powered by AI to determine the best wavelengths of light to deliver to plants at different stages of development.

Researchers have discovered 1,300 combinations for 72 types of crops, can produce harvests of lettuce 10 times per year, and have cut the breeding time of wheat, cotton, and soybeans by more than half.

Resources and links:

China unveils world's first AI-powered vertical farm
https://interestingengineering.com/in...

China builds world's first robotic vertical farm
https://news.cgtn.com/news/2023-12-03...

Academic abstract, Oxford Academic Press
https://academic.oup.com/hr/article/d... Published in Oxford Academic Press

Bankruptcies throughout the indoor vertical farming sectors:
https://fortune.com/2023/09/18/indoor...
https://www.fastcompany.com/90824702/...
https://www.verticalfarmdaily.com/art...